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sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2022/01/24 10:55] – [Recalculations] kotzulla | sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2023/03/02 09:57] – [Discussion of emission trends] kotzulla | ||
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In sub-categories //1.A.3.b vi - Road transport: Automobile tyre and brake wear// emissions from automobile tyre and brake wear in RT are reported. Therefore, these sub-category is an important source for a) particle emissions and b) emissions of heavy metals, POPs etc. included in these particles. | In sub-categories //1.A.3.b vi - Road transport: Automobile tyre and brake wear// emissions from automobile tyre and brake wear in RT are reported. Therefore, these sub-category is an important source for a) particle emissions and b) emissions of heavy metals, POPs etc. included in these particles. | ||
- | ^ Category Code ^ Method | + | ^ Category Code ^ Method |
- | | 1.A.3.b vi | + | | 1.A.3.b vi |
- | ^ | + | ^ |
- | | 1.A.3.b vi | + | | Key Category: |
===== Methodology ===== | ===== Methodology ===== | ||
Line 45: | Line 45: | ||
// | // | ||
- | __Table: Outcome of Key Category Analysis__ | + | __Table |
| for: ^ BC | | for: ^ BC | ||
| by: | Level | L/- | L/- | Level & Trend | L/- | | | by: | Level | L/- | L/- | Level & Trend | L/- | | ||
Line 51: | Line 51: | ||
All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered. | All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered. | ||
- | {{ : | + | {{ : |
- | {{ : | + | |
+ | Whereas annual copper emissions result almost entirely from the wear of (disc) brakes... | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | ...zinc emissions result from both tyre and brake wear with high amounts of zinc used in tyre rubber and drum brakes applied in trucks and buses and hence involved in stop-and-go traffic. | ||
+ | |||
+ | {{ : | ||
===== Recalculations ===== | ===== Recalculations ===== | ||
- | **Activity data** (mileage) | + | Compared to last year's submission, emission estimates |
+ | Differences in the relative changes provided for the specific pollutants result from the different emission factors applied for the different vehicle types. | ||
- | However, the biggest changes occur in the tier1 **emission factors** that have been revised during a research study. | + | __Table : Revised emission estimates for particulate matter, copper and zinc, in [kt]__ |
- | The variety of old and revised emission factors cannot be compared here in a comprehendible way. | + | | ^ 1990 ^ 1995 |
+ | | **Black Carbon (BC)** - from tyre wear only | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **PM< | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **PM< | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Total Suspended Particles (TSP)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Copper (Cu)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Zinc (Zn)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
- | <WRAP center round info 60%> | ||
- | For more information on recalculated emission estimates for Base Year and 2019, please see the pollutant-specific recalculation tables following chapter [[general: | ||
- | </ | ||
+ | <WRAP center round info 65%> | ||
+ | For **pollutant-specific information on recalculated emission estimates for Base Year and 2020**, please see the recalculation tables following [[general: | ||
+ | </ | ||
===== Planned improvements ===== | ===== Planned improvements ===== | ||